Preparation and use methods of oil agent for spandex spinning

Abstract

The invention discloses preparation and use methods of an oil agent for spandex spinning. The oil agent for spandex spinning comprises the following components in parts by weight: 10-40 parts of mineral oil, 5-30 parts of organic silicone oil, 5-10 parts of synthetic ester, 10-20 parts of polyoxyethylene fatty acid, 5-10 parts of modified silicone oil, 1-5 parts of an anti-adhesion agent, and 1-2parts of an antistatic agent. The method is only suitable for dry-process spandex spinning or molten spandex spinning and is not suitable for wet-process spandex spinning, the oil applying amount of the oil agent for spandex spinning used in every 100kg of spandex spinning is controlled to be 5-7 kg in dry-process spandex spinning or molten spandex spinning, for the oil applying manner of the oilagent for spandex spinning, roller oil applying or oil applying using an oil spraying nozzle is adopted, the smoothness, bundling property and antistatic property of the oil agent for spandex spinningare very excellent, the smooth spandex spinning production can be guaranteed, and meanwhile, a quality guarantee is provided for the follow-up use, particularly the uniform unwinding.

Description

technical field [0001] The invention belongs to the technical field of preparing fiber oil, and in particular relates to a method for preparing and using an oil for spandex spinning. Background technique [0002] Spandex was first developed and produced by DuPont, also known as Lycra fiber. In the 21st century, China introduced foreign technology and called it spandex. After 20 years of development, by the end of 2018, domestic spandex production had increased to 800,000 tons, and it was increasing every year. 12% growth rate, the output has ranked first in the world. [0003] Spandex has been localized from raw material supply to production process to equipment manufacturing, but the oil used in spandex spinning has not been localized, and is still monopolized by foreign oil companies. The reasons are as follows: [0004] One is that the research and development of the oil agent started late, and the other is that the oil agent is too important for spandex spinning and sub...

AI Technical Summary

Problems solved by technology

[0007] One is the oil agent mainly prepared from mineral oil and synthetic ester in the early stage of development. This oil agent makes spandex poor in spinnability and serious in adhesion;

[0008] The second is the oil agent mainly prepared with mineral oil, silicone oil and modified silicone oil. Although the spinnability of spandex has been improved, the surface strength of silicone oil is low, which leads to poor molding of spandex silk cake and easy slipping. The inner and outer layers of spandex silk cake The difference in unwinding tension is large;

[0009] The third is to add anti-adhesion components such as stearate on the basis of the above, but there are problems such as the oil itself is unstable and easy to precipitate, and the pipeline is blocked during production and application.